In depth comparison and review of Lenovo ThinkBook 15-IIL (20SM) and Lenovo ThinkPad E15 Gen 2 (20TE). Compare sizes, performance, storage capacities, batteries and other important specifications and features to easily choose the right laptop for you. Our goal is to help you uncover differences between the products and find the laptop that will best fit your needs.
Advantages and disadvantages of Lenovo ThinkBook 15-IIL (20SM) based on its technical characteristics, features, user experience, expert reviews and price level.
affordable price point
solid build quality
decent battery life
good processor performance
adequate storage options
average display quality
limited graphics capability
no thunderbolt support
heavier design
Advantages and disadvantages of Lenovo ThinkPad E15 Gen 2 (20TE) based on its technical characteristics, features, user experience, expert reviews and price level.
robust build quality
excellent keyboard feel
good security features
decent battery life
affordable price point
average display quality
modest graphics performance
no thunderbolt support
heavier design
DESIGN AND DIMENSIONS | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Product Type | Notebook | Notebook |
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Dimensions (WxDxH) | 36.4 cm x 24.5 cm x 1.89 cm | 36.5 cm x 24 cm x 1.89 cm |
Weight | 1.8 kg | 1.7 kg |
Case Material | Aluminum, polycarbonate ABS | Aluminium (top), polycarbonate ABS (bottom) |
Colour | Mineral grey | Black |
DISPLAY | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Screen Size (Type) | 15.6" - IPS | 15.6" - TN |
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LCD Backlight Technology | LED backlight | - |
Screen Resolution | 1920 x 1080 (Full HD) | 1920 x 1080 (Full HD) |
Widescreen | Yes | Yes |
Image Aspect Ratio | 16:9 | 16:9 |
Image Brightness | 250 cd/m² | 220 cd/m² |
Colour Gamut | - | 45% NTSC |
Features | Anti-glare | Anti-glare, 90° viewing angle |
PROCESSOR | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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CPU | Intel Core i5 (10th Gen) 1035G1 / 1 GHz | Intel Core i5 (11th Gen) 1135G7 / 2.4 GHz |
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Max Turbo Speed | 3.6 GHz | 4.2 GHz |
Number of Cores | Quad-Core | Quad-Core |
Cache | 6 MB | 8 MB |
64-bit Computing | Yes | - |
Features | Integrated memory controller | Integrated memory controller |
MEMORY | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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RAM | 8 GB (1 x 8 GB) | 8 GB (1 x 8 GB) |
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Max RAM Supported | 16 GB | 32 GB |
RAM Type | DDR4 SDRAM | DDR4 SDRAM |
Speed | 2666 MHz | 3200 MHz |
Rated Speed | 2666 MHz | 3200 MHz |
Form Factor | SO-DIMM 260-pin | SO-DIMM 260-pin |
Slots Qty | 1 | 1 |
Empty Slots | 0 | 0 |
STORAGE | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Main Storage Size (HDD/SSD) | 256 GB SSD M.2 2242 PCIe 3.0 x2 - NVM Express (NVMe) | 256 GB SSD M.2 2242 PCIe 3.0 x4 - Samsung |
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AUDIO & VIDEO | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Graphics Processor (GPU) | Intel UHD Graphics | NVIDIA GeForce MX450 / Intel Iris Xe Graphics |
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Max Monitors Supported | - | 2 external monitor(s) |
Video Memory | - | 2 GB GDDR5 SDRAM |
Camera | Yes - 720p | Yes - 720p |
Camera Features | ThinkShutter camera privacy | Privacy shutter, fixed focus |
Sound | Stereo speakers, dual array microphone | Stereo speakers, dual array microphone |
Codec | Realtek ALC3287 | Realtek ALC3287 |
Compliant Standards | High Definition Audio, Dolby Audio | High Definition Audio, Dolby Audio |
Audio Features | - | Harman audio technology |
COMMUNICATIONS | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Wireless | Bluetooth 5.0, 802.11a/b/g/n/ac/ax | 802.11a/b/g/n/ac/ax, Bluetooth 5.1 |
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Wireless Controller | M.2 Card | Intel Wi-Fi 6 AX 201 - M.2 Card |
Network Interface | Gigabit Ethernet | Gigabit Ethernet |
Ethernet Controller | - | Realtek RTL8111H-CG |
Features | Dual stream (2x2) | Wake-on-LAN (WOL), dual stream (2x2) |
BATTERY | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Technology | Lithium Ion | 3-cell lithium polymer |
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Battery Capacity (Size) | 45 Wh | 45 Wh |
Battery Life | Up to 9 hours | Up to 10.8 hours |
AC ADAPTER | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Input | AC 120/230 V (50/60 Hz) | AC 100-240 V (50/60 Hz) |
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Output | 65 Watt | 65 Watt |
INPUT | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Type | Keyboard, touchpad | Keyboard, TrackPoint, UltraNav |
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Numeric Keypad | Yes | Yes |
Keyboard Backlight | Yes | - |
Features | Spill-resistant, multi-touch touchpad, buttonless touchpad | Spill-resistant, multi-touch touchpad, Fn keys with Unified Communications controls |
CONNECTIONS & EXPANSIONS | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Slots | - | 1 x M.2 (PCI Express 3.0 x4) (1 free) |
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Interfaces | USB 2.0 USB 3.1 Gen 1 (Always On) USB 3.1 Gen 1 USB-C 3.1 Gen 1 USB-C 3.1 Gen 2 (supports DisplayPort Alt Mode) (Power Delivery) HDMI Headphone/microphone combo jack |
USB 2.0 USB 3.2 Gen 1 (Always On) USB4 (supports Thunderbolt 4, DisplayPort 1.4 Alt Mode) (Power Delivery 3.0) HDMI LAN Headphone/microphone combo jack |
Memory Card Reader | 4 in 1 (SD Card, MultiMediaCard, SDHC Card, SDXC Card) | - |
SOFTWARE | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Operating System (OS) | Windows 10 Pro 64-bit Edition - French | Windows 10 Pro 64-bit Edition |
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Software Included | Microsoft Office (30 days trial) | - |
MISCELLANEOUS | Lenovo ThinkBook 15-IIL (20SM) | Lenovo ThinkPad E15 Gen 2 (20TE) |
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Included Accessories | Power adapter | USB-C power adapter |
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Security | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader | Firmware Trusted Platform Module (TPM 2.0) Security Chip, fingerprint reader |
Security Slot Type | Kensington security slot | Kensington security slot |
Theft/Intrusion Protection | Security lock slot (cable lock sold separately) | Security lock slot (cable lock sold separately) |
Features | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810G tested | Administrator password, hard drive password, power-on password, RapidCharge, MIL-STD-810H tested, self-healing BIOS |
Compliant Standards | RoHS, Energy-Related Products (ErP) Lot 3 | RoHS, TUV Rheinland Low Blue Light Certification, Energy-Related Products (ErP) Lot 3, TCG Certified |
ENERGY STAR Certified | - | Yes |
EPEAT Compliant | - | EPEAT Gold |
Max Operating Temperature | - | 35 °C |
Min Operating Temperature | - | 5 °C |
Humidity Range Operating | - | 8 - 95% |
Manufacturer Warranty | Limited warranty - 1 year - pick-up and return | - |